6 Strange Noises Your Air Conditioner Might Be Making and What They Mean

When your air conditioner starts making strange noises, it can be disconcerting at best and downright scary at worst. These sounds are usually the signs that something is wrong with your air conditioning Sydney unit, and it's time to schedule service or maintenance. Understanding the strange noises can help you make informed decisions and avoid expensive replacements and air conditioning repairs Sydney down the road. Here's what some of the most common strange noises you might hear mean and how you can address them.

Humming

Air conditioners make all sorts of noises, and while some are normal, others might be caused by something more serious. If you hear a humming noise or a clicking sound coming from your AC, it's important to have it looked at as soon as possible because these noises could indicate that the bearings need to be replaced. The good news is that this is an easy problem to fix. Call an air conditioning Sydney professional who can come inspect the unit and replace any broken parts.

Growling

A growling sound usually indicates that your air conditioners condensate drain pipe is clogged. The noise could also be caused by a fan not working correctly, or a dirty filter. You'll want to schedule an appointment with an HVAC technician as soon as possible to fix this problem.

Grinding

Grinding noises typically mean that the motor in your AC unit has seized up and will need to be replaced or rebuilt. If your house is hot or you see a lack of cool air coming out, it's time to get it fixed!

Squealing

One common noise is a squeaking or squealing sound. This could be caused by a loose belt, which is usually an easy fix. However, if this noise lasts for more than two hours and happens more frequently, the air conditioning unit may need to be replaced. A squealing noise can also be the result of an electrical short in the compressor.

Squeaking

Squeaking is caused by the expansion and contraction of metal as it heats up and cools down. As air blows over the cold coils on your air conditioner, they can make an annoying squeak sound. You may notice that your air conditioner is squeaking more during a hot day than on a cooler day because it has to work harder to cool you off when it's hotter outside. The noise usually stops when you turn off the unit or switch to auto mode, which runs at lower speeds.

Rumbling

Rumbling is a type of vibration, which can be caused by a number of things. This includes something as simple as turning on your air conditioner too quickly, or it could also mean that there's a problem with the compressor or motor. If you notice this noise coming from your AC, it's a good idea to take note and contact an HVAC professional.

If your air conditioner make these sounds, please have a HVAC technician inspect the cooling system to diagnose and fix the problem immediately.

The author is a professional HVAC technician. Along with a team of professionals, he provides air conditioning maintenance, installation, and service. Visit https://epicair.com.au/ for more details on air conditioning installation in Sydney.

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